Daily Kos founder Markos Moulitsas has launched a campaign to make life difficult for Mitt Romney, by encouraging Democrats to vote for Rick Santorum in open primary and caucus states.

Moulitsas argues that the longer the primary drags on, the better it’s getting for Democrats — noting that Rick Santorum will inevitably follow the path of Herman Cain and Newt Gingrich and see his poll numbers fall.

It’s a no-brainer! The following states have completely open contests coming up: